NGC 6388

NGC 6388
NGC 6388 taken from the Hubble Space Telescope Credit: NASA, ESA, F. Ferraro (University of Bologna)
Observation data (J2000 epoch)
Class	III[1][2]
Constellation	Scorpius[2]
Right ascension	17^h 36^m 17.461^s[3][4]
Declination	−44° 44′ 08.34″[3][4]
Distance	32.3 kilolight-years (10 kiloparsecs)[2]
Apparent magnitude (V)	6.72[2]
Apparent dimensions (V)	6.2 arcmins[2]
Physical characteristics
Tidal radius	6.21 arcmins[5]
VHB	16.85[5]
Metallicity	$\begin{smallmatrix}\left[{Fe}/{H}\right]\end{smallmatrix}$ = -0.55[5] dex
Other designations	47 Tuc,[5] GCL 70, ESO 279-SC2

NGC 6388 is a globular cluster located in the constellation Scorpius. The cluster was discovered by Scottish astronomer James Dunlop on May 13, 1826 using a 22.86 cm (9 in) reflector telescope. Due to its moderate apparent magnitude (+6.72), a telescope is required to see it.

Ground-based view

This view is captured by the MPG/ESO telescope

References

1. Shapley, Harlow; Sawyer, Helen B. (August 1927). "A Classification of Globular Clusters". Harvard College Observatory Bulletin 849 (849): 11–14. Bibcode:1927BHarO.849...11S.
2. "Students for the Exploration and Development of Space (NCG 6388)". Retrieved 26 September 2015.
3. "SIMBAD Astronomical Database (NGC 6388)". Retrieved 27 September 2015.
4. "NASA/IPAC Extragalactic Database (NGC 6388)". Retrieved 27 September 2015.
5. "Galactic Globular Clusters Database (NCG 6388)". Retrieved 26 September 2015.